In Perry, KY, the heat of summer can easily reach the 90s. Therefore, the last thing you need is for your heat pump to freeze. Read on to learn the possible reasons your heat pump might freeze.
Restricted Airflow
A clogged filter will result in poor airflow, and so will foreign matter in the outdoor unit. When the airflow is bad, the pressure inside the system will drop. A drop in pressure means that the heat pump will get colder than normal, resulting in the formation of ice on the outdoor intake or indoor coil and pipes.
Dirty Coil
When your coil is dirty, it attracts extra moisture and cannot transfer heat as well as it should. When the airflow is poor, the extra moisture will freeze faster than it would if the coil were clean. Maintaining a clean coil will keep it drier, thus limiting the amount of ice that can form.
Low Coolant
It sounds like a contradiction: low coolant can cause your heat pump to freeze, requiring HVAC maintenance. Even more than poor airflow, low coolant results in drastically lower pressure inside your system, which causes it to freeze.
Resolving such a problem requires meticulous examination of the entire system for leaks. Refilling coolant alone won’t solve the problem since it might eventually leak out.
Obstructions Around the Vents
This is another version of “something that reduces the pressure inside the heat pump.” Return vents direct the air inside your home toward the system.
While in cooling mode, the heat pump removes the heat from the air and directs it outside. When return vents have something in front of them, it creates bad airflow, which is what causes the system to freeze.
There’s no need to fear because a professional HVAC service technician can get you back to feeling cool. We have decades of experience plus accreditation and an A+ rating from the Better Business Bureau. Call Appalachian Refrigeration, Heating & Cooling for heat pump service today.
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